2.8571 i think im not sure
The given equation is
(x - 2)² = 5(y + 1).
The given equation for the parabola is in the standard form
(x - h)² = 4p(y - k)
where
h = 2
4p = 5, so that p = 5/4
k = -1
The vertex is at
(h,k) or (2, -1)
The focus is located at
(h, k + p) or (2, -1 + 5/4) = (2, 1/4)
We should place the bulb at p = 5/4 from the vertex.
Answer: 1 1/4 or 1.25 cm
To find your answer you would need to add both colors(blue and green)
to do this you need to make the denominators the same :
24 is a number we can get 8 and 6 to :
1×4=4
6×4=24
5×3=15
8×3=24
your new fractions are 4/24 and 15/24, now we can add them :
4+15=19
and 24 stays the same
your answer is 19/24 (you can not simplify this)
hope this helped
Answer:
£0.465. It is a better value.
Step-by-step explanation:
If a pack of 6 batteries costs £2.79, price of a battery can be calculated as shown;
6batteries = £2.79
1 battery = x
x = cost of a battery
6x = £2.79
x = £2.79/6
x = £0.465
Price per battery will be £0.465. This price is a better value since the price is lesser than the cost of the 6batteries (£2.79) in a pack.